The Dinosaurs They Are A-Changin’ -- Groks Science Show 2013-05-15
Dinosaurs! Who doesn't love them? But the dinosaurs of our childhood - the giant Brontosaurus, the spiky Stegosaurus, and the Godzilla-like Tyrannosaurus rex - have changed so much over the years. The Brontosaurus, for example, never actually existed, and T. Rex might have had feathers! On this episode, science writer Brian Switek discussed his new book, "My Beloved Brontosaurus: On the Road with Old Bones, New Science, and Our Favorite Dinosaurs."